Method and device in communication node used for wireless communication

ABSTRACT

A method and a device in a communication node used for wireless communications is disclosed in the present disclosure. The communication node first receives first information and second information; and transmits a first radio signal in a first time window; and then transmits a second radio signal; the first information is used to determine a target time window, the second radio signal occupies a second time window in time domain, and the second information is used to determine at least one of whether the second time window belongs to the target time window or a relative position relationship between the second time window and the target time window; an end of the first time window is earlier than a start of the target time window. The present disclosure helps improve the utilization ratio of resources in Grant-Free transmission.

CROSS REFERENCE TO RELATED APPLICATIONS

This application is a continuation of the U.S. patent application Ser.No. 16/988,719, filed on Aug. 10, 2020, which is a continuation ofInternational Application No. PCT/CN2019/074156, filed Jan. 31, 2019,claims the priority benefit of Chinese Patent Application No.201810149428.0, filed on Feb. 13, 2018, the full disclosure of which isincorporated herein by reference.

BACKGROUND Technical Field

The present disclosure relates to transmission methods and devices inwireless communication systems, and in particular to a scheme and deviceof uplink Grant-free transmission.

Related Art

Application scenarios of future wireless communication systems arebecoming increasingly diversified, and different application scenarioshave different performance demands on systems. In order to meetdifferent performance requirements of various application scenarios, itwas decided at the 3rd Generation Partner Project (3GPP) Radio AccessNetwork (RAN) #72 plenary that a study on New Radio (NR), or what iscalled Fifth Generation (5G) shall be conducted. The work item of NR wasapproved at the 3GPP RAN #75 plenary to standardize NR.

To ensure better adaptability to various application scenarios andrequirements, the 3GPP RAN #76 plenary also approved a study item ofNon-orthogonal Multiple Access (NoMA) under NR, starting with R16version, and started a WI to standardize relevant techniques afterwards.Among all kinds of NoMA transmission methods, Grant-Free uplinktransmission will be a focus of the study because it's less demanding onthe complexity of a receiver.

SUMMARY

In Grant-Free uplink transmissions, especially in the situation of RadioResource Control (RRC) Inactive Mode, or RRC Idle Mode, uplinktransmissions of different UEs are not synchronized. Due tounsynchronized transmissions in uplink, a new structure of uplink burstneeds to be designed in Grant-Free uplink transmissions based onPreamble sequence to reduce collisions between a Grant-Free transmissionand a Grant-based transmission, thus ensuring the success oftransmission. The present disclosure proposes a solution. It should benoted that the embodiments of a base station in the present disclosureand characteristics in the embodiments may be applied to a UserEquipment (UE) if there is no conflict, and vice versa. And theembodiments of the present disclosure and the characteristics in theembodiments may be mutually combined if no conflict is incurred.

The present disclosure provides a method in a first-type communicationnode for wireless communications, comprising:

receiving first information and second information;

transmitting a first radio signal in a first time window; and

transmitting a second radio signal;

herein, the first information is used for determining a target timewindow, the second radio signal occupies a second time window in timedomain, and the second information is used for determining at least oneof whether the second time window belongs to the target time window or arelative position relationship between the second time window and thetarget time window; an end of the first time window is earlier than astart of the target time window, a radio resource occupied by the firstradio signal is used for determining at least one of a frequency-domainresource occupied by the second radio signal, a code-domain resourceoccupied by the second radio signal or a Modulation and Coding Schemeemployed by the second radio signal; the first information, the secondinformation, the first radio signal and the second radio signal are alltransmitted via an air interface.

In one embodiment, the relationship between the second time window andthe target time window is configured through the second information,including whether a length of the second time window is limited withinthe target time window, or where the second time window is locatedrelative to the target time window if the length of the second timewindow does not belong to the target time window. The network side cancontrol whether the data part in Grant-Free transmissions collides withprevious and subsequent transmissions (which may be grant-based orgrant-free), and, in the case of collision, the extent of thecollisions, thereby enabling the network equipment to employ schedulingin avoidance of collision through detection of preamble sequence.

In one embodiment, scheduling is implemented to prevent collisions,thereby avoiding gap reserved in data transmission, saving overhead andenhancing the resource utilization ratio.

According to one aspect of the present disclosure, the above method ischaracterized in that the second time window belongs to the target timewindow, a time length of a time interval between an end of the secondtime window and an end of the target time window is no less than adifference between a time length of the first time window and a timelength occupied by the first radio signal.

According to one aspect of the present disclosure, the above method ischaracterized in that the second time window comprises a time-domainresource outside the target time window, a time length of a timeinterval between an end time for a transmission of the first radiosignal and an end of the first time window is a first gap length, and atime length of a time interval between a start of the first time windowand a start time for a transmission of the first radio signal is asecond gap length; a time length of a time interval between a start ofthe second time window and a start of the target time window is equal tothe first gap length, or a time length of a time interval between an endof the target time window and an end of the second time window is equalto the second gap length.

In one embodiment, if collision is allowed, whether the data configuredin the second information collides with a previous transmission or asubsequent one matters, thus enabling the network side to control thecollision in a flexible manner according to transmission requirements,for instance, if a previous transmission is uplink control, such as anSRS or a PUCCH, a possible collision controlled by the network side onlyoccurs in the subsequent transmission; if a subsequent transmission isdownlink control, such as a PDCCH, the collision controlled may onlyoccur in the previous transmission. In this way scheduling is made fulluse of to avoid collision, thereby improving transmission efficiency.

According to one aspect of the present disclosure, the above method ischaracterized in further comprising:

receiving third information;

herein, the third information is used for indicating P candidate radioresources, and a radio resource occupied by the first radio signal isone of the P candidate radio resources, P being a positive integer, thethird information is transmitted via the air interface.

According to one aspect of the present disclosure, the above method ischaracterized in that the first information is used for indicating afirst radio resource pool, frequency-domain resources comprised by thefirst radio resource pool comprise the frequency-domain resourceoccupied by the second radio signal, code-domain resources comprised bythe first radio resource pool comprise the code-domain resource occupiedby the second radio signal, and time-domain resources comprised by thefirst radio resource pool comprise the target time window, the radioresource occupied by the first radio signal is used for determining atleast one of the frequency-domain resource occupied by the second radiosignal or the code-domain resource occupied by the second radio signalin the first radio resource pool.

The present disclosure provides a method in a second-type communicationnode for wireless communications, comprising:

transmitting first information and second information;

monitoring a first radio signal in a first time window; and

receiving a second radio signal when the first radio signal is detected;

herein, the first information is used for determining a target timewindow, the second radio signal occupies a second time window in timedomain, and the second information is used for determining at least oneof whether the second time window belongs to the target time window or arelative position relationship between the second time window and thetarget time window; an end of the first time window is earlier than astart of the target time window, a radio resource occupied by the firstradio signal is used for determining at least one of a frequency-domainresource occupied by the second radio signal, a code-domain resourceoccupied by the second radio signal or a Modulation and Coding Schemeemployed by the second radio signal; the first information, the secondinformation, the first radio signal and the second radio signal are alltransmitted via an air interface.

According to one aspect of the present disclosure, the above method ischaracterized in that the second time window belongs to the target timewindow, a time length of a time interval between an end of the secondtime window and an end of the target time window is no less than adifference between a time length of the first time window and a timelength occupied by the first radio signal.

According to one aspect of the present disclosure, the above method ischaracterized in that the second time window comprises a time-domainresource outside the target time window, a time length of a timeinterval between an end time for a transmission of the first radiosignal and an end of the first time window is a first gap length, and atime length of a time interval between a start of the first time windowand a start time for a transmission of the first radio signal is asecond gap length; a time length of a time interval between a start ofthe second time window and a start of the target time window is equal tothe first gap length, or a time length of a time interval between an endof the target time window and an end of the second time window is equalto the second gap length.

According to one aspect of the present disclosure, the above method ischaracterized in further comprising:

transmitting third information;

herein, the third information is used for indicating P candidate radioresources, and a radio resource occupied by the first radio signal isone of the P candidate radio resources, P being a positive integer, thethird information is transmitted via the air interface.

According to one aspect of the present disclosure, the above method ischaracterized in that the first information is used for indicating afirst radio resource pool, frequency-domain resources comprised by thefirst radio resource pool comprise the frequency-domain resourceoccupied by the second radio signal, code-domain resources comprised bythe first radio resource pool comprise the code-domain resource occupiedby the second radio signal, and time-domain resources comprised by thefirst radio resource pool comprise the target time window, the radioresource occupied by the first radio signal is used for determining atleast one of the frequency-domain resource occupied by the second radiosignal or the code-domain resource occupied by the second radio signalin the first radio resource pool.

The present disclosure provides a first-type communication node forwireless communications, comprising:

a first receiver, receiving first information and second information;

a first transmitter, transmitting a first radio signal in a first timewindow; and

a second transmitter, transmitting a second radio signal;

herein, the first information is used for determining a target timewindow, the second radio signal occupies a second time window in timedomain, and the second information is used for determining at least oneof whether the second time window belongs to the target time window or arelative position relationship between the second time window and thetarget time window; an end of the first time window is earlier than astart of the target time window, a radio resource occupied by the firstradio signal is used for determining at least one of a frequency-domainresource occupied by the second radio signal, a code-domain resourceoccupied by the second radio signal or a Modulation and Coding Schemeemployed by the second radio signal; the first information, the secondinformation, the first radio signal and the second radio signal are alltransmitted via an air interface.

According to one aspect of the present disclosure, the above first-typecommunication node is characterized in that the second time windowbelongs to the target time window, a time length of a time intervalbetween an end of the second time window and an end of the target timewindow is no less than a difference between a time length of the firsttime window and a time length occupied by the first radio signal.

According to one aspect of the present disclosure, the above first-typecommunication node is characterized in that the second time windowcomprises a time-domain resource outside the target time window, a timelength of a time interval between an end time for a transmission of thefirst radio signal and an end of the first time window is a first gaplength, and a time length of a time interval between a start of thefirst time window and a start time for a transmission of the first radiosignal is a second gap length; a time length of a time interval betweena start of the second time window and a start of the target time windowis equal to the first gap length, or a time length of a time intervalbetween an end of the target time window and an end of the second timewindow is equal to the second gap length.

According to one aspect of the present disclosure, the above first-typecommunication node is characterized in that the first receiver alsoreceives third information; wherein the third information is used forindicating P candidate radio resources, and a radio resource occupied bythe first radio signal is one of the P candidate radio resources, Pbeing a positive integer, the third information is transmitted via theair interface.

According to one aspect of the present disclosure, the above first-typecommunication node is characterized in that the first information isused for indicating a first radio resource pool, frequency-domainresources comprised by the first radio resource pool comprise thefrequency-domain resource occupied by the second radio signal,code-domain resources comprised by the first radio resource poolcomprise the code-domain resource occupied by the second radio signal,and time-domain resources comprised by the first radio resource poolcomprise the target time window, the radio resource occupied by thefirst radio signal is used for determining at least one of thefrequency-domain resource occupied by the second radio signal or thecode-domain resource occupied by the second radio signal in the firstradio resource pool.

The present disclosure provides a second-type communication node forwireless communications, comprising:

a third transmitter, transmitting first information and secondinformation;

a second receiver, monitoring a first radio signal in a first timewindow; and

a third receiver, receiving a second radio signal when the first radiosignal is detected;

herein, the first information is used for determining a target timewindow, the second radio signal occupies a second time window in timedomain, and the second information is used for determining at least oneof whether the second time window belongs to the target time window or arelative position relationship between the second time window and thetarget time window; an end of the first time window is earlier than astart of the target time window, a radio resource occupied by the firstradio signal is used for determining at least one of a frequency-domainresource occupied by the second radio signal, a code-domain resourceoccupied by the second radio signal or a Modulation and Coding Schemeemployed by the second radio signal; the first information, the secondinformation, the first radio signal and the second radio signal are alltransmitted via an air interface.

According to one aspect of the present disclosure, the above second-typecommunication node is characterized in that the second time windowbelongs to the target time window, a time length of a time intervalbetween an end of the second time window and an end of the target timewindow is no less than a difference between a time length of the firsttime window and a time length occupied by the first radio signal.

According to one aspect of the present disclosure, the above second-typecommunication node is characterized in that the second time windowcomprises a time-domain resource outside the target time window, a timelength of a time interval between an end time for a transmission of thefirst radio signal and an end of the first time window is a first gaplength, and a time length of a time interval between a start of thefirst time window and a start time for a transmission of the first radiosignal is a second gap length; a time length of a time interval betweena start of the second time window and a start of the target time windowis equal to the first gap length, or a time length of a time intervalbetween an end of the target time window and an end of the second timewindow is equal to the second gap length.

According to one aspect of the present disclosure, the above second-typecommunication node is characterized in that the third transmitter alsotransmits third information; wherein the third information is used forindicating P candidate radio resources, and a radio resource occupied bythe first radio signal is one of the P candidate radio resources, Pbeing a positive integer, the third information is transmitted via theair interface.

According to one aspect of the present disclosure, the above second-typecommunication node is characterized in that the first information isused for indicating a first radio resource pool, frequency-domainresources comprised by the first radio resource pool comprise thefrequency-domain resource occupied by the second radio signal,code-domain resources comprised by the first radio resource poolcomprise the code-domain resource occupied by the second radio signal,and time-domain resources comprised by the first radio resource poolcomprise the target time window, the radio resource occupied by thefirst radio signal is used for determining at least one of thefrequency-domain resource occupied by the second radio signal or thecode-domain resource occupied by the second radio signal in the firstradio resource pool.

In one embodiment, the present disclosure has the following technicaladvantages:

The present disclosure provides network equipment that can control,according to scheduling requests, whether to reserve gap to avoidcollision for the data part in Grant-Free uplink transmission, thusstriking a balance between scheduling flexibility and resourceutilization, jointly contributing to higher transmission efficiency.

The method provided by the present disclosure allows the network side tocontrol collision flexibly according to transmission requests (forexample, if the previous transmission is uplink control, such as an SRSor a PUCCH, a possible collision controlled only occurs in a subsequenttransmission, if a subsequent transmission is downlink, such as a PDCCH,a possible collision controlled only occurs in a previous transmission),thereby guaranteeing full use of scheduling in avoidance of collision,and enhancing transmission efficiency.

BRIEF DESCRIPTION OF THE DRAWINGS

Other features, objects and advantages of the present disclosure willbecome more apparent from the detailed description of non-restrictiveembodiments taken in conjunction with the following drawings:

FIG. 1 illustrates a flowchart of transmission of first information,second information, a first radio signal and a second radio signalaccording to one embodiment of the present disclosure.

FIG. 2 illustrates a schematic diagram of a network architectureaccording to one embodiment of the present disclosure.

FIG. 3 illustrates a schematic diagram of a radio protocol architectureof a user plane and a control plane according to one embodiment of thepresent disclosure.

FIG. 4 illustrates a schematic diagram of a first-type communicationnode and a second-type communication node according to one embodiment ofthe present disclosure.

FIG. 5 illustrates a flowchart of radio signal transmission according toone embodiment of the present disclosure.

FIG. 6 illustrates another flowchart of radio signal transmissionaccording to one embodiment of the present disclosure.

FIG. 7 illustrates a schematic diagram of relationship between a firstradio signal and a second radio signal according to one embodiment ofthe present disclosure.

FIG. 8 illustrates a schematic diagram of relationship between a secondtime window and a target time window according to one embodiment of thepresent disclosure.

FIG. 9 illustrates a schematic diagram of a first gap length and asecond gap length according to one embodiment of the present disclosure.

FIG. 10 illustrates a schematic diagram of P candidate radio resourcesaccording to one embodiment of the present disclosure.

FIG. 11 illustrates a schematic diagram of a first radio resource poolaccording to one embodiment of the present disclosure.

FIG. 12 illustrates a structure block diagram of a processing device ina first-type communication node according to one embodiment of thepresent disclosure.

FIG. 13 illustrates a structure block diagram of a processing device ina second-type communication node according to one embodiment of thepresent disclosure.

DESCRIPTION OF THE EMBODIMENTS

The technical scheme of the present disclosure is described below infurther details in conjunction with the drawings. It should be notedthat the embodiments of the present disclosure and the characteristicsof the embodiments may be arbitrarily combined if no conflict is caused.

Embodiment 1

Embodiment 1 illustrates a flowchart of transmission of firstinformation, second information, a first radio signal and a second radiosignal according to one embodiment of the present disclosure, as shownin FIG. 1. In FIG. 1, each box represents a step. In Embodiment 1, thefirst-type communication node of the present disclosure first receivesfirst information and second information; transmits a first radio signalin a first time window; and then transmits a second radio signal;herein, the first information is used for determining a target timewindow, the second radio signal occupies a second time window in timedomain, and the second information is used for determining at least oneof whether the second time window belongs to the target time window or arelative position relationship between the second time window and thetarget time window; an end of the first time window is earlier than astart of the target time window, a radio resource occupied by the firstradio signal is used for determining at least one of a frequency-domainresource occupied by the second radio signal, a code-domain resourceoccupied by the second radio signal or a Modulation and Coding Schemeemployed by the second radio signal; the first information, the secondinformation, the first radio signal and the second radio signal are alltransmitted via an air interface.

In one embodiment, the first information is transmitted via ahigher-layer signaling.

In one embodiment, the first information is transmitted via aphysical-layer signaling.

In one embodiment, the first information comprises all or part of ahigher-layer signaling.

In one embodiment, the first information comprises all or part of aphysical-layer signaling.

In one embodiment, the first information is transmitted through aPhysical Broadcast Channel (PBCH).

In one embodiment, the first information comprises one or more fields ina Master Information Block (MIB).

In one embodiment, the first information is transmitted through aDownlink Shared Channel (DL-SCH).

In one embodiment, the first information is transmitted through aPhysical Downlink Shared Channel (PDSCH).

In one embodiment, the first information comprises one or more fields ina System Information Block (SIB).

In one embodiment, the first information comprises one or more fields inRemaining System Information (RMSI).

In one embodiment, the first information comprises all or part of aRadio Resource Control (RRC) signaling.

In one embodiment, the first information is broadcast.

In one embodiment, the first information is unicast.

In one embodiment, the first information is cell-specific.

In one embodiment, the first information is UE-specific.

In one embodiment, the first information is transmitted through aPhysical Downlink Control Channel (PDCCH).

In one embodiment, the first information comprises all or part of fieldsin a Downlink Control Information (DCI) signaling.

In one embodiment, the phrase that the first information is used fordetermining the target time window means that the first information isused by the first-type communication node for determining the targettime window.

In one embodiment, the phrase that the first information is used fordetermining the target time window means that the first informationdirectly indicates the target time window.

In one embodiment, the phrase that the first information is used fordetermining the target time window means that the first informationindirectly indicates the target time window.

In one embodiment, the phrase that the first information is used fordetermining the target time window means that the first informationexplicitly indicates the target time window.

In one embodiment, the phrase that the first information is used fordetermining the target time window means that the first informationimplicitly indicates the target time window.

In one embodiment, the phrase that the first information is used fordetermining the target time window means that the first information isused for indicating at least one of a time length of a time intervalbetween a start of the target time window and an end of the first timewindow, or a time length of the target time window.

In one embodiment, the phrase that the first information is used fordetermining the target time window means that the first information isused for indicating at least one of a time length of a time intervalbetween a start of the target time window and a start of the first timewindow, or a time length of the target time window.

In one embodiment, the phrase that the first information is used fordetermining the target time window means that the first information isused for indicating at least one of a time length of the target timewindow or a time-domain position of the target time window.

In one embodiment, the second information is transmitted via ahigher-layer signaling.

In one embodiment, the second information is transmitted via aphysical-layer signaling.

In one embodiment, the second information comprises all or part of ahigher-layer signaling.

In one embodiment, the second information comprises all or part of aphysical-layer signaling.

In one embodiment, the second information is transmitted through a PBCH.

In one embodiment, the second information comprises one or more fieldsin a MIB.

In one embodiment, the second information is transmitted through aDL-SCH.

In one embodiment, the second information is transmitted through aPDSCH.

In one embodiment, the second information comprises one or more fieldsin a SIB.

In one embodiment, the second information comprises one or more fieldsin RMSI.

In one embodiment, the second information comprises all or part of anRRC signaling.

In one embodiment, the second information is broadcast.

In one embodiment, the second information is unicast.

In one embodiment, the second information is cell-specific.

In one embodiment, the second information is UE-specific.

In one embodiment, the second information is transmitted through aPDCCH.

In one embodiment, the second information comprises all or part offields in a DCI signaling.

In one embodiment, the phrase that the second information is used fordetermining at least one of whether the second time window belongs tothe target time window or a relative position relationship between thesecond time window and the target time window means that the secondinformation is used by the first-type communication node for determiningat least one of whether the second time window belongs to the targettime window or a relative position relationship between the second timewindow and the target time window.

In one embodiment, the phrase that the second information is used fordetermining at least one of whether the second time window belongs tothe target time window or a relative position relationship between thesecond time window and the target time window means that the secondinformation directly indicates at least one of whether the second timewindow belongs to the target time window or a relative positionrelationship between the second time window and the target time window.

In one embodiment, the phrase that the second information is used fordetermining at least one of whether the second time window belongs tothe target time window or a relative position relationship between thesecond time window and the target time window means that the secondinformation indirectly indicates at least one of whether the second timewindow belongs to the target time window or a relative positionrelationship between the second time window and the target time window.

In one embodiment, the phrase that the second information is used fordetermining at least one of whether the second time window belongs tothe target time window or a relative position relationship between thesecond time window and the target time window means that the secondinformation explicitly indicates at least one of whether the second timewindow belongs to the target time window or a relative positionrelationship between the second time window and the target time window.

In one embodiment, the phrase that the second information is used fordetermining at least one of whether the second time window belongs tothe target time window or a relative position relationship between thesecond time window and the target time window means that the secondinformation implicitly indicates at least one of whether the second timewindow belongs to the target time window or a relative positionrelationship between the second time window and the target time window.

In one embodiment, the first information and the second information aretransmitted via a same signaling.

In one embodiment, the first information and the second information aretransmitted via a same RRC signaling.

In one embodiment, the first information and the second information aretransmitted via difference signalings.

In one embodiment, the first information and the second information aretransmitted through a same physical channel.

In one embodiment, the first information and the second information aretransmitted through different physical channels.

In one embodiment, the first information and the second information aretransmitted through a same PDSCH.

In one embodiment, the first information and the second information aretransmitted through two different PDSCHs.

In one embodiment, the first information and the second information arethrough Joint Coding and then transmitted via a same signaling.

In one embodiment, the first information and the second information arethrough Joint Coding and then transmitted as a same field in a samesignaling.

In one embodiment, the first information and the second information aretransmitted as two different fields in a same signaling.

In one embodiment, the first information and the second information arethrough Joint Coding and then transmitted as a same Information Element(IE) in a same RRC signaling.

In one embodiment, the first information and the second information aretransmitted as two different IEs in a same RRC signaling.

In one embodiment, the first time window is a slot at a receiver side ofthe first radio signal with a given subcarrier spacing.

In one embodiment, the first time window is a positive integer number ofconsecutive slots at a receiver side of the first radio signal with agiven subcarrier spacing.

In one embodiment, the first time window is a positive integer number ofconsecutive subframes at a receiver side of the first radio signal.

In one embodiment, a start and an end of the first time window arealigned with boundaries of multicarrier symbols respectively at areceiver side of the first radio signal.

In one embodiment, the first time window is a slot at the first-typecommunication node with a given subcarrier spacing.

In one embodiment, the first time window is a positive integer number ofconsecutive slots at the first-type communication node with a givensubcarrier spacing.

In one embodiment, the first time window is a positive integer number ofconsecutive subframes at the first-type communication node.

In one embodiment, a start and an end of the first time window arealigned with boundaries of multicarrier symbols respectively at thefirst-type communication node.

In one embodiment, the first radio signal is generated by acharacteristic sequence.

In one embodiment, the first radio signal is transmitted through aPhysical Random Access Channel (PRACH).

In one embodiment, the first radio signal carries a Preamble.

In one embodiment, the first radio signal is transmitted through aRandom Access Channel (RACH).

In one embodiment, the first radio signal is generated by acharacteristic sequence, and the characteristic sequence is either aZadoff-Chu (ZC) sequence or a pseudo-random sequence.

In one embodiment, the first radio signal is generated by acharacteristic sequence, and the characteristic sequence is one of anintegral number of orthogonal sequences or non-orthogonal sequences.

In one embodiment, a time length of the first time window is larger thana number of time-domain resources occupied by the first radio signal.

In one embodiment, a time length of the first time window is larger thana time length occupied by the first radio signal.

In one embodiment, the first-type communication node transmits the firstradio signal in the first time window according to a downlink timing.

In one embodiment, the first-type communication node transmits the firstradio signal in the first time window according to a time for receptionof a boundary of a downlink slot serving as a start time for atransmission of the first radio signal.

In one embodiment, the second radio signal is transmitted through anUplink Shared Channel (UL-SCH).

In one embodiment, the second radio signal is transmitted through aPhysical Uplink Shared Channel (PUSCH).

In one embodiment, the second radio signal is obtained by all or part ofbits in a Transport Block (TB) sequentially through TB Cyclic RedundancyCheck (CRC) insertion, Code Block Segmentation, Code Block CRCinsertion, Rate Matching, Concatenation, Scrambling, a ModulationMapper, a Layer Mapper, Precoding, a Resource Element Mapper, andBaseband Signal Generation.

In one embodiment, the second radio signal is obtained by all or part ofbits in a Transport Block (TB) sequentially through TB Cyclic RedundancyCheck (CRC) insertion, Code Block Segmentation, Code Block CRCinsertion, Rate Matching, Concatenation, Scrambling, a ModulationMapper, a Layer Mapper, Transform Precoding, Precoding, a ResourceElement Mapper, and Baseband Signal Generation.

In one embodiment, the second radio signal is obtained by all or part ofbits in a positive integer number of Code Block(s) (CB) sequentiallythrough CB CRC insertion, Rate Matching, Concatenation, Scrambling, aModulation Mapper, a Layer Mapper, Transform Precoding, Precoding, aResource Element Mapper, and Baseband Signal Generation.

In one embodiment, the second radio signal is obtained by all or part ofbits in a positive integer number of Code Block(s) (CB) sequentiallythrough Code Block CRC insertion, Rate Matching, Concatenation,Scrambling, a Modulation Mapper, a Layer Mapper, Precoding, a ResourceElement Mapper, and Baseband Signal Generation.

In one embodiment, the relative position relationship between the secondtime window and the target time window comprises a time-domain relationbetween a start of the second time window and a start of the target timewindow.

In one embodiment, the relative position relationship between the secondtime window and the target time window comprises a time-domain relationbetween a start of the second time window and an end of the target timewindow.

In one embodiment, the relative position relationship between the secondtime window and the target time window comprises a time-domain relationbetween an end of the second time window and an end of the target timewindow.

In one embodiment, the relative position relationship between the secondtime window and the target time window comprises a time-domain relationbetween an end of the second time window and a start of the target timewindow.

In one embodiment, the second time window and the target time window areorthogonal.

In one embodiment, the second time window and the target time window arenon-orthogonal.

In one embodiment, the second time window comprises a positive integernumber of consecutive multicarrier symbol(s) (i.e., OFDM Symbols,including CP) at the first-type communication node with a givenSubcarrier Spacing (SCS).

In one embodiment, the second time window comprises a positive integernumber of consecutive multicarrier symbol(s) (i.e., OFDM Symbols,including CP) at a receiver side of the second radio signal with a givenSubcarrier Spacing (SCS).

In one embodiment, the target time window is a slot at the first-typecommunication node with a given subcarrier spacing.

In one embodiment, the target time window is a positive integer numberof consecutive multicarrier symbol(s) (i.e., OFDM symbols, including CP)at the first-type communication node with a given subcarrier spacing.

In one embodiment, the target time window is a positive integer numberof consecutive slots at the first-type communication node with a givensubcarrier spacing.

In one embodiment, the target time window is a positive integer numberof consecutive subframes at the first-type communication node.

In one embodiment, the target time window is a slot at a receiver sideof the second radio signal with a given subcarrier spacing.

In one embodiment, the target time window is a positive integer numberof consecutive multicarrier symbol(s) (i.e., OFDM symbols, including CP)at a receiver side of the second radio signal with a given subcarrierspacing.

In one embodiment, the target time window is a positive integer numberof consecutive slots at a receiver side of the second radio signal witha given subcarrier spacing.

In one embodiment, the target time window is a positive integer numberof consecutive subframes at a receiver side of the second radio signal.

In one embodiment, a timing for the target time window is related to atiming for the first time window.

In one embodiment, a start of the target time window and an end of thetarget time window are aligned with boundaries of multicarrier symbolsrespectively at the first-type communication node.

In one embodiment, a start of the target time window and an end of thetarget time window are aligned with boundaries of multicarrier symbolsrespectively at a receiver of the second radio signal.

In one embodiment, the first time window, the second time window and thetarget time window are time windows at the first-type communicationnode.

In one embodiment, the first time window, the second time window and thetarget time window are time windows at a transmitter of the firstinformation.

In one embodiment, a radio resource occupied by the first radio signalcomprises at least one of a time-frequency resource or a code-domainresource.

In one embodiment, a radio resource occupied by the first radio signalcomprises at least one of a time-domain resource occupied by the firstradio signal, a frequency-domain resource occupied by the first radiosignal or a code-domain resource occupied by the first radio signal.

In one embodiment, a radio resource occupied by the first radio signalcomprises at least one of a characteristic sequence for generating thefirst radio signal or a time-frequency resource for transmitting thefirst radio signal.

In one embodiment, the code-domain resource occupied by the second radiosignal refers to a characteristic sequence resource for generating thesecond radio signal.

In one embodiment, the code-domain resource occupied by the second radiosignal refers to a scrambling sequence resource for generating thesecond radio signal.

In one embodiment, the code-domain resource occupied by the second radiosignal refers to an interleaving sequence resource for generating thesecond radio signal.

In one embodiment, the code-domain resource occupied by the second radiosignal refers to an orthogonal code resource for generating the secondradio signal.

In one embodiment, the code-domain resource occupied by the second radiosignal refers to a non-orthogonal code resource for generating thesecond radio signal.

In one embodiment, a time interval from the end of the first time windowto the start of the target time window is no less than X millisecond(s),X being positive which is pre-defined or configurable.

In one embodiment, the air interface is wireless.

In one embodiment, the air interface comprises a wireless channel.

In one embodiment, the air interface is an interface between thesecond-type communication node and the first-type communication node.

In one embodiment, the air interface is a Uu interface.

Embodiment 2

Embodiment 2 illustrates a schematic diagram of a network architecture,as shown in FIG. 2. FIG. 2 is a diagram illustrating a networkarchitecture 200 of NR 5G, Long-Term Evolution (LTE), and Long-TermEvolution Advanced (LTE-A) systems. The NR 5G or LTE networkarchitecture 200 may be called an Evolved Packet System (EPS) 200, whichmay comprise one or more UEs 201/241, an NG-RAN 202, an Evolved PacketCore/5G-Core Network (EPC/5G-CN) 210, a Home Subscriber Server (HSS) 220and an Internet Service 230. The EPS 200 may be interconnected withother access networks. For simple description, the entities/interfacesare not shown. As shown in FIG. 2, the EPS 200 provides packet switchingservices. Those skilled in the art will find it easy to understand thatvarious concepts presented throughout the present disclosure can beextended to networks providing circuit switching services. The NG-RAN202 comprises an NR node B (gNB) 203 and other gNBs 204. The gNB 203provides UE 201-oriented user plane and control plane terminations. ThegNB 203 may be connected to other gNBs 204 via an Xn interface (forexample, backhaul). The gNB 203 may be called a base station, a basetransceiver station, a radio base station, a radio transceiver, atransceiver function, a Base Service Set (BSS), an Extended Service Set(ESS), a Transmitter Receiver Point (TRP) or some other applicableterms. In NTN, the gNB 203 may be a satellite, an aircraft or aterrestrial base station relayed by satellites. The gNB 203 provides anaccess point of the EPC/5G-CN 210 for the UE 201. Examples of UE 201include cellular phones, smart phones, Session Initiation Protocol (SIP)phones, laptop computers, Personal Digital Assistant (PDA), SatelliteRadios, Global Positioning Systems (GPSs), multimedia devices, videodevices, digital audio players (for example, MP3 players), cameras,games consoles, unmanned aerial vehicles, air vehicles, narrow-bandphysical network equipment, machine-type communication equipment, landvehicles, automobiles, wearable equipment, or any other devices havingsimilar functions. Those skilled in the art also can call the UE 201 amobile station, a subscriber station, a mobile unit, a subscriber unit,a wireless unit, a remote unit, a mobile device, a wireless device, aradio communication device, a remote device, a mobile subscriberstation, an access terminal, a mobile terminal, a wireless terminal, aremote terminal, a handset, a user proxy, a mobile client, a client orsome other appropriate terms. The gNB 203 is connected to the EPC/5G-CN210 via an S1/NG interface. The EPC/5G-CN 210 comprises a MobilityManagement Entity (MME)/Authentication Management Field (AMF)/User PlaneFunction (UPF) 211, other MMEs/AMFs/214, a Service Gateway (S-GW) 212and a Packet Date Network Gateway (P-GW) 213. The MME/AMF/UPF 211 is acontrol node for processing a signaling between the UE 201 and theEPC/5G-CN 210. Generally, the MME/AMF/UPF 211 provides bearer andconnection management. All user Internet Protocol (IP) packets aretransmitted through the S-GW 212. The S-GW 212 is connected to the P-GW213. The P-GW 213 provides UE IP address allocation and other functions.The P-GW 213 is connected to the Internet Service 230. The InternetService 230 comprises operator-compatible IP services, specificallyincluding Internet, Intranet, IP Multimedia Subsystem (IMS) and PacketSwitching Streaming (PSS) services.

In one embodiment, the UE 201 corresponds to the first-typecommunication node in the present disclosure.

In one embodiment, the UE 201 supports Grant-Free uplink transmissions.

In one embodiment, the gNB 203 supports the second-type communicationnode in the present disclosure.

In one embodiment, the gNB 203 supports Grant-Free uplink transmissions.

Embodiment 3

Embodiment 3 illustrates a schematic diagram of a radio protocolarchitecture of a user plane and a control plane, as shown in FIG. 3.FIG. 3 is a schematic diagram illustrating a radio protocol architectureof a user plane and a control plane. In FIG. 3, the radio protocolarchitecture for a first-type communication node (UE) and a second-typecommunication node (gNB, eNB, or, a satellite or aircraft in NTN) isrepresented by three layers, which are a layer 1, a layer 2 and a layer3, respectively. The layer 1 (L1) is the lowest layer and performssignal processing functions of various PHY layers. The L1 is called PHY301 in the present disclosure. The layer 2 (L2) 305 is above the PHY301, and is in charge of the link between the first-type communicationnode and the second-type communication node via the PHY 301. In the userplane, L2 305 comprises a Medium Access Control (MAC) sublayer 302, aRadio Link Control (RLC) sublayer 303 and a Packet Data ConvergenceProtocol (PDCP) sublayer 304. All the three sublayers terminate at thesecond-type communication nodes of the network side. Although notdescribed in FIG. 3, the first-type communication node may compriseseveral higher layers above the L2 305, such as a network layer (i.e.,IP layer) terminated at a P-GW 213 of the network side and anapplication layer terminated at the other side of the connection (i.e.,a peer UE, a server, etc.). The PDCP sublayer 304 provides multiplexingamong variable radio bearers and logical channels. The PDCP sublayer 304also provides a header compression for a higher-layer packet so as toreduce radio transmission overhead. The PDCP sublayer 304 providessecurity by encrypting a packet and provides support for handover offirst-type communication node between second-type communication nodes.The RLC sublayer 303 provides segmentation and reassembling of ahigher-layer packet, retransmission of a lost packet, and reordering ofa packet so as to compensate the disordered receiving caused by HybridAutomatic Repeat reQuest (HARQ). The MAC sublayer 302 providesmultiplexing between a logical channel and a transport channel. The MACsublayer 302 is also responsible for allocating between first-typecommunication nodes various radio resources (i.e., resource blocks) in acell. The MAC sublayer 302 is also in charge of HARQ operation. In thecontrol plane, the radio protocol architecture of the first-typecommunication node and the second-type communication node is almost thesame as the radio protocol architecture in the user plane on the PHY 301and the L2 305, but there is no header compression for the controlplane. The control plane also comprises an RRC sublayer 306 in the layer3 (L3). The RRC sublayer 306 is responsible for acquiring radioresources (i.e., radio bearer) and configuring the lower layer using anRRC signaling between the second-type communication node and thefirst-type communication node.

In one embodiment, the radio protocol architecture in FIG. 3 isapplicable to the first-type communication node in the presentdisclosure.

In one embodiment, the radio protocol architecture in FIG. 3 isapplicable to the second-type communication node in the presentdisclosure.

In one embodiment, the first information of the present disclosure isgenerated by the RRC sublayer 306.

In one embodiment, the second information of the present disclosure isgenerated by the RRC sublayer 306.

In one embodiment, the first information of the present disclosure isgenerated by the MAC sublayer 302.

In one embodiment, the second information of the present disclosure isgenerated by the MAC sublayer 302.

In one embodiment, the first information of the present disclosure isgenerated by the PHY 301.

In one embodiment, the second information of the present disclosure isgenerated by the PHY 301.

In one embodiment, the first radio signal of the present disclosure isgenerated by the RRC sublayer 306.

In one embodiment, the first radio signal of the present disclosure isgenerated by the MAC sublayer 302.

In one embodiment, the first radio signal of the present disclosure isgenerated by the PHY 301.

In one embodiment, the second radio signal of the present disclosure isgenerated by the RRC sublayer 306.

In one embodiment, the second radio signal of the present disclosure isgenerated by the MAC sublayer 302.

In one embodiment, the second radio signal of the present disclosure isgenerated by the PHY 301.

Embodiment 4

Embodiment 4 illustrates a schematic diagram of a base station and agiven UE according to the present disclosure, as shown in FIG. 4. FIG. 4is a block diagram of a gNB/eNB 410 in communication with a UE 450 in anaccess network.

The UE (450) comprises a controller/processor 490, a memory 480, areceiving processor 452, a transmitter/receiver 456, a transmittingprocessor 455 and a data source 467, wherein the transmitter/receiver456 comprises an antenna 460. The data source 467 provides ahigher-layer packet to the controller/processor 490, thecontroller/processor 490 provides header compression and decompression,encryption and decryption, packet segmentation and reordering as well asmultiplexing and demultiplexing between a logical channel and atransport channel so as to implement the L2 layer protocols used for theuser plane and the control plane. The higher layer packet may comprisedata or control information, such as DL-SCH or UL-SCH. The transmittingprocessor 455 performs various signal transmitting processing functionsof the L1 layer (that is, PHY), including coding, interleaving,scrambling, modulation, power control/allocation, precoding and physicallayer signaling generation. The receiving processor 452 performs varioussignal receiving processing functions of the L1 layer (that is, PHY),including decoding, de-interleaving, descrambling, demodulation,de-precoding and physical layer control signaling extraction. Thetransmitter 456 is configured to convert a baseband signal provided bythe transmitting processor 455 into a radio frequency (RF) signal to betransmitted via the antenna 460. The receiver 456 is configured toconvert the RF signal received via the antenna 460 into a basebandsignal to be provided to the receiving processor 452.

The base station (410) may comprise a controller/processor 440, a memory430, a receiving processor 412, a transmitter/receiver 416 and atransmitting processor 415, wherein the transmitter/receiver 416comprises an antenna 420. A higher layer packet is provided to thecontroller/processor 440. The controller/processor 440 provides headercompression and decompression, encryption and decryption, packetsegmentation and reordering as well as multiplexing and demultiplexingbetween a logical channel and a transport channel, so as to implementthe L2 layer protocols used for the user plane and the control plane.The higher layer packet may comprise data or control information, suchas DL-SCH or UL-SCH. The transmitting processor 415 performs varioussignal transmitting processing functions of the L1 layer (that is, PHY),including coding, interleaving, scrambling, modulation, powercontrol/allocation, precoding and physical layer signaling (i.e.,synchronization signal, reference signal, etc.) generation. Thereceiving processor 412 performs various signal receiving processingfunctions of the L1 layer (that is, PHY), including decoding,de-interleaving, descrambling, demodulation, de-precoding and physicallayer signaling extraction. The transmitter 416 is configured to converta baseband signal provided by the transmitting processor 415 into a RFsignal to be transmitted via the antenna 420. The receiver 416 isconfigured to convert the RF signal received via the antenna 420 into abaseband signal to be provided to the receiving processor 412.

In Downlink (DL) transmission, a higher layer packet, as carried byfirst information, second information, and third information of thepresent disclosure, is provided to the controller/processor 440. Thecontroller/processor 440 implements the functionality of the L2 layer.In DL transmission, the controller/processor 440 provides headercompression, encryption, packet segmentation and reordering andmultiplexing between a logical channel and a transport channel, as wellas radio resource allocation for the UE 450 based on varied priorities.The controller/processor 440 is also in charge of HARQ operation,retransmission of a lost packet, and a signaling to the UE 450, forinstance, the first information, the second information, and the thirdinformation of the present disclosure are all generated in thecontroller/processor 440. The transmitting processor 415 performs signalprocessing functions of the L1 layer (that is, PHY), including decodingand interleaving, so as to promote Forward Error Correction (FEC) at theUE 450 side and modulation of baseband signal based on variousmodulation schemes (i.e., BPSK, QPSK). Modulation symbols are dividedinto parallel streams and each stream is mapped onto a correspondingmulticarrier subcarrier and/or multicarrier symbol, which is latermapped from the transmitting processor 415 to the antenna 420 via thetransmitter 416 to be transmitted in the form of RF signal.Corresponding channels of the first information, the second informationand the third information of the present disclosure on physical layerare mapped from the transmitting processor 415 to a target radioresource and then mapped from the transmitter 416 to the antenna 420 tobe transmitted in the form of RF signals. At the receiver side, eachreceiver 456 receives an RF signal via a corresponding antenna 460; eachreceiver 456 recovers baseband information modulated to the RF carrierand provides the baseband information to the receiving processor 452.The receiving processor 452 performs signal receiving processingfunctions of the L1 layer. The signal receiving processing functionsinclude reception of physical layer signals carrying the firstinformation, the second information and the third information of thepresent disclosure, demodulation of multicarrier symbols in multicarriersymbol streams based on each modulation scheme (e.g., BPSK, QPSK), andthen decoding and de-interleaving of the demodulated symbols so as torecover data or control signals transmitted by the base station (gNB)410 on a physical channel, and the data or control signals are laterprovided to the controller/processor 490. The controller/processor 490implements the functionality of the L2 layer, and interprets the firstinformation, the second information, and the third information of thepresent disclosure. The controller/processor 490 may be associated withthe memory 480 that stores program codes and data. The memory 480 can becalled a computer readable medium.

In Uplink (UL) transmission, the data source 467 is used to provideconfiguration data relevant to the first radio signal of the presentdisclosure to the controller/processor 490. The data source 467represents all protocol layers above the L2 layer, and the second radiosignal is generated by the data source 467. The controller/processor 490provides header compression, encryption, packet segmentation andreordering and multiplexing between a logical channel and a transportchannel based on radio resources allocation for the gNB 410, so as toimplement the L2 layer protocols used for the user plane and the controlplane. The controller/processor 490 is also in charge of HARQ operation,retransmission of a lost packet, and a signaling to the gNB 410. Thetransmitting processor 455 provides various signal transmittingprocessing functions used for the L1 layer (that is, PHY). The signaltransmitting processing functions include coding and modulating, etc.Modulation symbols are divided into parallel streams and each stream ismapped onto a corresponding multicarrier subcarrier and/or multicarriersymbol for baseband signal generation, which is later mapped from thetransmitting processor 455 to the antenna 460 via the transmitter 456 tobe transmitted in the form of RF signal. Signals on physical layer(including generation and transmission of the first radio signal of thepresent disclosure, and processing of the second radio signal onphysical layer) are generated by the transmitting processor 455. Thereceiver 416 receives an RF signal via a corresponding antenna 420. Eachreceiver 416 recovers baseband information modulated to the RF carrier,and provides the baseband information to the receiving processor 412.The receiving processor 412 provides various signal receiving processingfunctions used for the L1 layer (that is, PHY), including detecting ofthe first radio signal of the present disclosure and receiving of thesecond radio signal on physical layer. The signal receiving processingfunctions also include acquisition of multicarrier symbol streams,demodulation of multicarrier symbols in the multicarrier symbol streamsbased on each modulation scheme, and then decoding of the demodulatedsymbols so as to recover data and/or control signals originallytransmitted by the UE 450 on a physical channel. And the data and/orcontrol signals are later provided to the controller/processor 440. Thecontroller/processor 440 implements the functionality of the L2 layer.The controller/processor 440 may be associated with the memory 430 thatstores program codes and data. The memory 430 can be called a computerreadable medium.

In one embodiment, the UE 450 corresponds to the first-typecommunication node of the present disclosure.

In one embodiment, the gNB 410 corresponds to the second-typecommunication node of the present disclosure.

In one embodiment, the UE 450 comprises at least one processor and atleast one memory, the at least one memory comprises computer programcodes; the at least one memory and the computer program codes areconfigured to be used in collaboration with the at least one processor,the UE 450 at least receives first information and second information;transmits a first radio signal in a first time window; and thentransmits a second radio signal; herein, the first information is usedfor determining a target time window, the second radio signal occupies asecond time window in time domain, and the second information is usedfor determining at least one of whether the second time window belongsto the target time window or a relative position relationship betweenthe second time window and the target time window; an end of the firsttime window is earlier than a start of the target time window, a radioresource occupied by the first radio signal is used for determining atleast one of a frequency-domain resource occupied by the second radiosignal, a code-domain resource occupied by the second radio signal or aModulation and Coding Scheme employed by the second radio signal; thefirst information, the second information, the first radio signal andthe second radio signal are all transmitted via an air interface.

In one embodiment, the UE 450 comprises a memory that stores computerreadable instruction program, the computer readable instruction programgenerates actions when executed by at least one processor, whichinclude: receiving first information and second information;transmitting a first radio signal in a first time window; and thentransmitting a second radio signal; herein, the first information isused for determining a target time window, the second radio signaloccupies a second time window in time domain, and the second informationis used for determining at least one of whether the second time windowbelongs to the target time window or a relative position relationshipbetween the second time window and the target time window; an end of thefirst time window is earlier than a start of the target time window, aradio resource occupied by the first radio signal is used fordetermining at least one of a frequency-domain resource occupied by thesecond radio signal, a code-domain resource occupied by the second radiosignal or a Modulation and Coding Scheme employed by the second radiosignal; the first information, the second information, the first radiosignal and the second radio signal are all transmitted via an airinterface.

In one embodiment, the gNB 410 comprises at least one processor and atleast one memory, the at least one memory comprises computer programcodes; the at least one memory and the computer program codes areconfigured to be used in collaboration with the at least one processor.The gNB 410 at least transmits first information and second information;monitors a first radio signal in a first time window; and receives asecond radio signal when the first radio signal is detected; herein, thefirst information is used for determining a target time window, thesecond radio signal occupies a second time window in time domain, andthe second information is used for determining at least one of whetherthe second time window belongs to the target time window or a relativeposition relationship between the second time window and the target timewindow; an end of the first time window is earlier than a start of thetarget time window, a radio resource occupied by the first radio signalis used for determining at least one of a frequency-domain resourceoccupied by the second radio signal, a code-domain resource occupied bythe second radio signal or a Modulation and Coding Scheme employed bythe second radio signal; the first information, the second information,the first radio signal and the second radio signal are all transmittedvia an air interface.

In one embodiment, the gNB 410 comprises a memory that stores computerreadable instruction program, the computer readable instruction programgenerates actions when executed by at least one processor, whichinclude: transmitting first information and second information;monitoring a first radio signal in a first time window; and receiving asecond radio signal when the first radio signal is detected; herein, thefirst information is used for determining a target time window, thesecond radio signal occupies a second time window in time domain, andthe second information is used for determining at least one of whetherthe second time window belongs to the target time window or a relativeposition relationship between the second time window and the target timewindow; an end of the first time window is earlier than a start of thetarget time window, a radio resource occupied by the first radio signalis used for determining at least one of a frequency-domain resourceoccupied by the second radio signal, a code-domain resource occupied bythe second radio signal or a Modulation and Coding Scheme employed bythe second radio signal; the first information, the second information,the first radio signal and the second radio signal are all transmittedvia an air interface.

In one embodiment, the receiver 456 (comprising the antenna 460), thereceiving processor 452 and the controller/processor 490 are used in thepresent disclosure for receiving the first information.

In one embodiment, the receiver 456 (comprising the antenna 460), thereceiving processor 452 and the controller/processor 490 are used in thepresent disclosure for receiving the second information.

In one embodiment, the receiver 456 (comprising the antenna 460), thereceiving processor 452 and the controller/processor 490 are used in thepresent disclosure for receiving the third information.

In one embodiment, the transmitter 456 (comprising the antenna 460), thetransmitting processor 455 and the controller/processor 490 are used inthe present disclosure for transmitting the first radio signal.

In one embodiment, the transmitter 456 (comprising the antenna 460), thetransmitting processor 455 and the controller/processor 490 are used inthe present disclosure for transmitting the second radio signal.

In one embodiment, the transmitter 416 (comprising the antenna 420), thetransmitting processor 415 and the controller/processor 440 are used fortransmitting the first information of the present disclosure.

In one embodiment, the transmitter 416 (comprising the antenna 420), thetransmitting processor 415 and the controller/processor 440 are used fortransmitting the second information of the present disclosure.

In one embodiment, the transmitter 416 (comprising the antenna 420), thetransmitting processor 415 and the controller/processor 440 are used fortransmitting the third information of the present disclosure.

In one embodiment, the receiver 416 (comprising the antenna 420), thereceiving processor 412 and the controller/processor 440 are used forreceiving the first radio signal of the present disclosure.

In one embodiment, the receiver 416 (comprising the antenna 420), thereceiving processor 412 and the controller/processor 440 are used forreceiving the second radio signal of the present disclosure.

Embodiment 5

Embodiment 5 illustrates a flowchart of radio signal transmissionaccording to one embodiment of the present disclosure, as shown in FIG.5. In FIG. 5, a second-type communication node N1 is a maintenance basestation for a serving cell of a first-type communication node U2.

The second-type communication node N1 transmits third information instep S11, transmits first information in step S12, transmits secondinformation in step S13, monitors a first radio signal in a first timewindow in step S14, and receives a second radio signal in step S15.

The first-type communication node U2 receives third information in stepS21, receives first information in step S22, receives second informationin step S23, transmits a first radio signal in a first time window instep S24, and transmits a second radio signal in step S25.

In Embodiment 5, the first information is used for determining a targettime window, the second radio signal occupies a second time window intime domain, and the second information is used for determining at leastone of whether the second time window belongs to the target time windowor a relative position relationship between the second time window andthe target time window; an end of the first time window is earlier thana start of the target time window, a radio resource occupied by thefirst radio signal is used for determining at least one of afrequency-domain resource occupied by the second radio signal, acode-domain resource occupied by the second radio signal or a Modulationand Coding Scheme employed by the second radio signal; the firstinformation, the second information, the first radio signal and thesecond radio signal are all transmitted via an air interface; the thirdinformation is used for indicating P candidate radio resources, and aradio resource occupied by the first radio signal is one of the Pcandidate radio resources, P being a positive integer, the thirdinformation is transmitted via the air interface.

In one embodiment, the third information is transmitted via ahigher-layer signaling.

In one embodiment, the third information is transmitted via a physicallayer signaling.

In one embodiment, the third information comprises all or part of ahigher-layer signaling.

In one embodiment, the third information comprises all or part of aphysical layer signaling.

In one embodiment, the third information is transmitted through a PBCH.

In one embodiment, the third information comprises one or more fields ina MIB.

In one embodiment, the third information is transmitted through aDL-SCH.

In one embodiment, the third information is transmitted through a PDSCH.

In one embodiment, the third information comprises one or more fields ina SIB.

In one embodiment, the third information comprises one or more fields inRMSI.

In one embodiment, the third information comprises all or part of an RRCsignaling.

In one embodiment, the third information is broadcast.

In one embodiment, the third information is unicast.

In one embodiment, the third information is cell-specific.

In one embodiment, the third information is UE-specific.

In one embodiment, the third information is transmitted through a PDCCH.

In one embodiment, the third information comprises all or part of fieldsin a DCI signaling.

In one embodiment, the first information and the third information aretransmitted via a same signaling.

In one embodiment, the first information and the third information aretransmitted via a same RRC signaling.

In one embodiment, the first information and the third information aretransmitted via different signalings.

In one embodiment, the first information and the third information aretransmitted through a same physical channel.

In one embodiment, the first information and the third information aretransmitted through different physical channels.

In one embodiment, the first information and the third information aretransmitted through a same PDSCH.

In one embodiment, the first information and the third information aretransmitted through two different PDSCHs.

In one embodiment, the first information and the third information aretransmitted as two different fields in a same signaling.

In one embodiment, the first information and the third information aretransmitted as two different IEs in a same RRC signaling.

In one embodiment, the phrase that the third information is used forindicating the P candidate radio resources means that the thirdinformation is used for directly indicating the P candidate radioresources.

In one embodiment, the phrase that the third information is used forindicating the P candidate radio resources means that the thirdinformation is used for indirectly indicating the P candidate radioresources.

In one embodiment, the phrase that the third information is used forindicating the P candidate radio resources means that the thirdinformation is used for implicitly indicating the P candidate radioresources.

In one embodiment, the phrase that the third information is used forindicating the P candidate radio resources means that the thirdinformation is used for explicitly indicating the P candidate radioresources.

Embodiment 6

Embodiment 6 illustrates another flowchart of radio signal transmissionaccording to one embodiment of the present disclosure, as shown in FIG.6. In FIG. 6, a second-type communication node N3 is a maintenance basestation for a serving cell of a first-type communication node U4.

The second-type communication node N3 transmits third information instep S31, transmits first information in step S32, transmits secondinformation in step S33, and monitors a first radio signal in a firsttime window in step S34.

The first-type communication node U4 receives third information in stepS41, receives first information in step S42, receives second informationin step S43, transmits a first radio signal in a first time window instep S44, and transmits a second radio signal in step S45.

In Embodiment 6, the first information is used for determining a targettime window, the second radio signal occupies a second time window intime domain, and the second information is used for determining at leastone of whether the second time window belongs to the target time windowor a relative position relationship between the second time window andthe target time window; an end of the first time window is earlier thana start of the target time window, a radio resource occupied by thefirst radio signal is used for determining at least one of afrequency-domain resource occupied by the second radio signal, acode-domain resource occupied by the second radio signal or a Modulationand Coding Scheme employed by the second radio signal; the firstinformation, the second information, the first radio signal and thesecond radio signal are transmitted via an air interface; the thirdinformation is used for indicating P candidate radio resources, and aradio resource occupied by the first radio signal is one of the Pcandidate radio resources, P being a positive integer, the thirdinformation is transmitted via the air interface.

Embodiment 7

Embodiment 7 illustrates a schematic diagram of relationship between afirst radio signal and a second radio signal according to one embodimentof the present disclosure, as shown in FIG. 7. In FIG. 7, the horizontalaxis represents time, while the vertical axis represents frequency. Theslash-filled rectangle represents a first radio signal, and thegrid-filled rectangle represents a second radio signal.

In Embodiment 7, a radio resource occupied by the first radio signal inthe present disclosure is used for determining at least one of afrequency-domain resource occupied by the second radio signal, acode-domain resource occupied by the second radio signal or a Modulationand Coding Scheme employed by the second radio signal.

In one embodiment, the first radio signal is generated by acharacteristic sequence.

In one embodiment, the first radio signal is transmitted through aPRACH.

In one embodiment, the first radio signal carries a Preamble.

In one embodiment, the first radio signal is transmitted through a RACH.

In one embodiment, the first radio signal is generated by acharacteristic sequence, and the characteristic sequence is either aZadoff-Chu (ZC) sequence or a pseudo-random sequence.

In one embodiment, the first radio signal is generated by acharacteristic sequence, and the characteristic sequence is one of anintegral number of orthogonal sequences or non-orthogonal sequences.

In one embodiment, the second radio signal is transmitted through aUL-SCH.

In one embodiment, the second radio signal is transmitted through aPUSCH.

In one embodiment, the second radio signal is obtained by all or part ofbits in a Transport Block (TB) sequentially through TB Cyclic RedundancyCheck (CRC) insertion, Code Block Segmentation, Code Block CRCinsertion, Rate Matching, Concatenation, Scrambling, a ModulationMapper, a Layer Mapper, Precoding, a Resource Element Mapper, andBaseband Signal Generation.

In one embodiment, the second radio signal is obtained by all or part ofbits in a Transport Block (TB) sequentially through TB Cyclic RedundancyCheck (CRC) insertion, Code Block Segmentation, Code Block CRCinsertion, Rate Matching, Concatenation, Scrambling, a ModulationMapper, a Layer Mapper, Transform Precoding, Precoding, a ResourceElement Mapper, and Baseband Signal Generation.

In one embodiment, the second radio signal is obtained by all or part ofbits in a positive integer number of Code Block(s) (CB) sequentiallythrough CB CRC insertion, Rate Matching, Concatenation, Scrambling, aModulation Mapper, a Layer Mapper, Transform Precoding, Precoding, aResource Element Mapper, and Baseband Signal Generation.

In one embodiment, the second radio signal is obtained by all or part ofbits in a positive integer number of Code Block(s) (CB) sequentiallythrough Code Block CRC insertion, Rate Matching, Concatenation,Scrambling, a Modulation Mapper, a Layer Mapper, Precoding, a ResourceElement Mapper, and Baseband Signal Generation.

In one embodiment, a radio resource occupied by the first radio signalcomprises at least one of a time-frequency resource or a code-domainresource.

In one embodiment, a radio resource occupied by the first radio signalcomprises at least one of a time-domain resource occupied by the firstradio signal, a frequency-domain resource occupied by the first radiosignal or a code-domain resource occupied by the first radio signal.

In one embodiment, a radio resource occupied by the first radio signalcomprises at least one of a characteristic sequence for generating thefirst radio signal or a time-frequency resource for transmitting thefirst radio signal.

In one embodiment, the code-domain resource occupied by the second radiosignal refers to a characteristic sequence resource for generating thesecond radio signal.

In one embodiment, the code-domain resource occupied by the second radiosignal refers to a scrambling sequence resource for generating thesecond radio signal.

In one embodiment, the code-domain resource occupied by the second radiosignal refers to an interleaving sequence resource for generating thesecond radio signal.

In one embodiment, the code-domain resource occupied by the second radiosignal refers to an orthogonal code resource for generating the secondradio signal.

In one embodiment, the code-domain resource occupied by the second radiosignal refers to a non-orthogonal code resource for generating thesecond radio signal.

Embodiment 8

Embodiment 8 illustrates a schematic diagram of relationship between asecond time window and a target time window according to one embodimentof the present disclosure, as shown in FIG. 8. In FIG. 8, the horizontalaxis represents time; the slash-filled rectangle represents a firstradio signal, and the cross-filled rectangle represents a second radiosignal.

In Embodiment 8, the second time window in the present disclosurebelongs to the target time window in the present disclosure, a timelength of a time interval between an end of the second time window andan end of the target time window is no less than a difference between atime length of the first time window and a time length occupied by thefirst radio signal.

In one embodiment, a time length of a time interval between an end ofthe second time window and an end of the target time window is equal toa difference between a time length of the first time window and a timelength occupied by the first radio signal.

In one embodiment, a time length of a time interval between an end ofthe second time window and an end of the target time window is less thana difference between a time length of the first time window and a timelength occupied by the first radio signal.

In one embodiment, a time length occupied by the first radio signalcomprises a time length of symbols and a time length of Cyclic Prefix(CP).

In one embodiment, the target time window comprises all time-domainresources in the second time window.

In one embodiment, a difference between a time length of the first timewindow and a time length occupied by the first radio signal is a timelength of a gap under a given format of a Physical Random Access Channel(PRACH).

In one embodiment, a difference between a time length of the first timewindow and a time length occupied by the first radio signal is equal toone of 2975 Ts, 21904 Ts, 2976 Ts, 1096 Ts, 2916 Ts, 96 Ts, 216 Ts, 360Ts and 792 Ts, where Ts=1/30.72 MHz.

In one embodiment, a time length of a time interval between an end ofthe second time window and an end of the target time window is equal toa time length of a positive integer number of multicarrier symbol(s)(including CP) with a given subcarrier spacing.

Embodiment 9

Embodiment 9 illustrates a schematic diagram of a first gap length and asecond gap length according to one embodiment of the present disclosure,as shown in FIG. 9. In FIG. 9, the horizontal axis represents time; theslash-filled rectangle represents a first radio signal, and across-filled rectangle represents a second radio signal. In Case A andCase B, the upper section represents a transmitting terminal, while thelower section represents a receiving terminal.

In Embodiment 9, the second time window in the present disclosurecomprises a time-domain resource other than the target time window ofthe present disclosure; a time length of a time interval between an endtime for a transmission of the first radio signal in the presentdisclosure and an end of the first time window in the present disclosureis a first gap length, and a time length of a time interval between astart of the first time window and a start time for a transmission ofthe first radio signal is a second gap length; a time length of a timeinterval between a start of the second time window and a start of thetarget time window is equal to the first gap length, or a time length ofa time interval between an end of the target time window and an end ofthe second time window is equal to the second gap length.

In one embodiment, the first gap length is dependent on a distance fromthe first-type communication node to a receiver of the first radiosignal.

In one embodiment, the first gap length is equal to a time length of apositive integer number of multicarrier symbol(s) (including CP).

In one embodiment, the first gap length is equal to a time length of afractional number of multicarrier symbol (including CP).

In one embodiment, the first gap length is equal to a time length of apositive integer number of sampling spacings employed by animplementation of the first-type communication node.

In one embodiment, the first gap length is equal to a transmission delayof the first radio signal subtracted from a time length of a gap under agiven format of a PRACH.

In one embodiment, the first gap length is equal to one of 2975 Ts,21904 Ts, 2976 Ts, 1096 Ts, 2916 Ts, 96 Ts, 216 Ts, 360 Ts and 792 Ts bysubtracting a transmission delay of the first radio signal, whereTs=1/30.72 MHz.

In one embodiment, the second gap length is dependent on a distance fromthe first-type communication node to a receiver of the first radiosignal.

In one embodiment, the second gap length is equal to a time length of apositive integer number of multicarrier symbol(s) (including CP).

In one embodiment, the second gap length is equal to a time length of anon-positive integer number of multicarrier symbol (including CP).

In one embodiment, the second gap length is equal to a time length of apositive integer number of sampling spacings employed by animplementation of the first-type communication node.

In one embodiment, the second gap length is equal to a transmissiondelay of the first radio signal.

In one embodiment, a time length of the second time window is equal to atime length of the target time window.

In one embodiment, a time length of the second time window is unequal toa time length of the target time window.

In one embodiment, a start of the second time window is earlier than astart of the target time window.

In one embodiment, a start of the second time window is later than astart of the target time window.

In one embodiment, an end of the target time window is earlier than anend of the second time window.

In one embodiment, an end of the target time window is later than an endof the second time window.

Embodiment 10

Embodiment 10 illustrates a schematic diagram of P candidate radioresources according to one embodiment of the present disclosure, asshown in FIG. 10. In FIG. 10, the horizontal axis represents timedomain, the longitudinal axis represents frequency domain, and thevertical axis represents code domain; the dot-filled rectanglerepresents a radio resource occupied by the first radio signal, and eachblank rectangle represents a candidate radio resource among P candidateradio resources other than a radio resource occupied by the first radiosignal.

In Embodiment 10, the third information in the present disclosure isused for indicating P candidate radio resources, and a radio resourceoccupied by the first radio signal is one of the P candidate radioresources, P being a positive integer, the third information istransmitted via the air interface.

In one embodiment, the first-type communication node randomly selectsthe radio resource occupied by the first radio signal from the Pcandidate radio resources.

In one embodiment, any of the P candidate radio resources comprises atleast one of a time-domain resource, a frequency-domain resource or acode-domain resource.

In one embodiment, the phrase that a radio resource occupied by thefirst radio signal is used for determining at least one of afrequency-domain resource occupied by the second radio signal, acode-domain resource occupied by the second radio signal or a Modulationand Coding Scheme employed by the second radio signal in the presentdisclosure means that a position of the radio resource occupied by thefirst radio signal among the P candidate radio resources is used fordetermining at least one of a frequency-domain resource occupied by thesecond radio signal, a code-domain resource occupied by the second radiosignal or a Modulation and Coding Scheme employed by the second radiosignal.

In one embodiment, the phrase that a radio resource occupied by thefirst radio signal is used for determining at least one of afrequency-domain resource occupied by the second radio signal, acode-domain resource occupied by the second radio signal or a Modulationand Coding Scheme employed by the second radio signal in the presentdisclosure means that an ordering index of the radio resource occupiedby the first radio signal among the P candidate radio resources is usedfor determining at least one of a frequency-domain resource occupied bythe second radio signal, a code-domain resource occupied by the secondradio signal or a Modulation and Coding Scheme employed by the secondradio signal.

Embodiment 11

Embodiment 11 illustrates a schematic diagram of a first radio resourcepool according to one embodiment of the present disclosure, as shown inFIG. 11. In FIG. 11, the horizontal axis represents time domain, thelongitudinal axis represents frequency domain, and the vertical axisrepresents code domain; the dot-filled rectangle represents a radioresource occupied by the second radio signal, and the blank cuboidrepresents a first radio resource pool.

In Embodiment 11, the first information in the present disclosure isused for indicating a first radio resource pool, frequency-domainresources comprised by the first radio resource pool comprise thefrequency-domain resource occupied by the second radio signal,code-domain resources comprised by the first radio resource poolcomprise the code-domain resource occupied by the second radio signal,and time-domain resources comprised by the first radio resource poolcomprise the target time window, the radio resource occupied by thefirst radio signal is used for determining at least one of thefrequency-domain resource occupied by the second radio signal or thecode-domain resource occupied by the second radio signal in the firstradio resource pool.

In one embodiment, the first information is used for directly indicatingthe first radio resource pool.

In one embodiment, the first information is used for indirectlyindicating the first radio resource pool.

In one embodiment, the first information is used for explicitlyindicating the first radio resource pool.

In one embodiment, the first information is used for implicitlyindicating the first radio resource pool.

In one embodiment, the first radio resource pool occupies contiguoustime-domain resources.

In one embodiment, the first radio resource pool occupies discretetime-domain resources.

In one embodiment, the first radio resource pool only comprises onecode-domain resource corresponding to a characteristic sequence.

In one embodiment, the first radio resource pool comprises Q candidateradio resources, and a target radio resource is one of the Q candidateradio resources, Q being a positive integer; a frequency-domain resourceoccupied by the second radio signal is the same as a frequency-domainresource comprised by the target radio resource, a code-domain resourceoccupied by the second radio signal is the same as a code-domainresource comprised by the target radio resource, and a time-domainresource comprised by the target radio resource is the target timewindow.

In one embodiment, the first radio resource pool comprises Q candidateradio resources, and a target radio resource is one of the Q candidateradio resources, Q being a positive integer; a frequency-domain resourceoccupied by the second radio signal is same as a frequency-domainresource comprised by the target radio resource, a code-domain resourceoccupied by the second radio signal is same as a code-domain resourcecomprised by the target radio resource, and a time-domain resourcecomprised by the target radio resource is the target time window; thephrase that the radio resource occupied by the first radio signal isused for determining at least one of the frequency-domain resourceoccupied by the second radio signal or the code-domain resource occupiedby the second radio signal in the first radio resource pool means thatthe radio resource occupied by the first radio signal is used fordetermining a target radio resource out of the Q candidate radioresources.

Embodiment 12

Embodiment 12 illustrates a structure block diagram of a processingdevice in a first-type communication node, as shown in FIG. 12. In FIG.12, a first-type communication node's processing device 1200 comprises afirst receiver 1201, a first transmitter 1202 and a second transmitter1203. The first receiver 1201 comprises the transmitter/receiver 456(comprising the antenna 460), the receiving processor 452 and thecontroller/processor 490 in FIG. 4 of the present disclosure; the firsttransmitter 1202 comprises the transmitter/receiver 456 (comprising theantenna 456), the transmitting processor 455 and thecontroller/processor 490 in FIG. 4 of the present disclosure; the secondtransmitter 1203 comprises the transmitter/receiver 456 (comprising theantenna 460), the transmitting processor 455 and thecontroller/processor 490 in FIG. 4 of the present disclosure.

In Embodiment 12, the first receiver 1201 receives first information andsecond information; the first transmitter 1202 transmits a first radiosignal in a first time window; the second transmitter 1203 transmits asecond radio signal; herein, the first information is used fordetermining a target time window, the second radio signal occupies asecond time window in time domain, and the second information is usedfor determining at least one of whether the second time window belongsto the target time window or a relative position relationship betweenthe second time window and the target time window; an end of the firsttime window is earlier than a start of the target time window, a radioresource occupied by the first radio signal is used for determining atleast one of a frequency-domain resource occupied by the second radiosignal, a code-domain resource occupied by the second radio signal or aModulation and Coding Scheme employed by the second radio signal; thefirst information, the second information, the first radio signal andthe second radio signal are all transmitted via an air interface.

In one embodiment, the second time window belongs to the target timewindow, a time length of a time interval between an end of the secondtime window and an end of the target time window is no less than adifference between a time length of the first time window and a timelength occupied by the first radio signal.

In one embodiment, the second time window comprises a time-domainresource outside the target time window, a time length of a timeinterval between an end time for a transmission of the first radiosignal and an end of the first time window is a first gap length, and atime length of a time interval between a start of the first time windowand a start time for a transmission of the first radio signal is asecond gap length; a time length of a time interval between a start ofthe second time window and a start of the target time window is equal tothe first gap length, or a time length of a time interval between an endof the target time window and an end of the second time window is equalto the second gap length.

In one embodiment, the first receiver 1201 also receives thirdinformation; herein, the third information is used for indicating Pcandidate radio resources, and a radio resource occupied by the firstradio signal is one of the P candidate radio resources, P being apositive integer, the third information is transmitted via the airinterface.

In one embodiment, the first information is used for indicating a firstradio resource pool, frequency-domain resources comprised by the firstradio resource pool comprise the frequency-domain resource occupied bythe second radio signal, code-domain resources comprised by the firstradio resource pool comprise the code-domain resource occupied by thesecond radio signal, and time-domain resources comprised by the firstradio resource pool comprise the target time window, the radio resourceoccupied by the first radio signal is used for determining at least oneof the frequency-domain resource occupied by the second radio signal orthe code-domain resource occupied by the second radio signal in thefirst radio resource pool.

Embodiment 13

Embodiment 13 illustrates a structure block diagram of a processingdevice in a second-type communication node, as shown in FIG. 13. In FIG.13, a second-type communication node's processing device 1300 comprisesa third transmitter 1301, a second receiver 1302 and a third receiver1303. The third transmitter 1301 comprises the transmitter/receiver 416(comprising the antenna 420), the transmitting processor 415 and thecontroller/processor 440 in FIG. 4 of the present disclosure; the secondreceiver 1302 comprises the transmitter/receiver 416 (comprising theantenna 420), the receiving processor 412 and the controller/processor440 in FIG. 4 of the present disclosure; the third receiver 1303comprises the transmitter/receiver 416 (comprising the antenna 420), thereceiving processor 412 and the controller/processor 440 in FIG. 4 ofthe present disclosure.

In Embodiment 13, the third transmitter 1301 transmits first informationand second information; the second receiver 1302 monitors a first radiosignal in a first time window; if the first radio signal is detected,the third receiver 1303 receives a second radio signal; herein, thefirst information is used for determining a target time window, thesecond radio signal occupies a second time window in time domain, andthe second information is used for determining at least one of whetherthe second time window belongs to the target time window or a relativeposition relationship between the second time window and the target timewindow; an end of the first time window is earlier than a start of thetarget time window, a radio resource occupied by the first radio signalis used for determining at least one of a frequency-domain resourceoccupied by the second radio signal, a code-domain resource occupied bythe second radio signal or a Modulation and Coding Scheme employed bythe second radio signal; the first information, the second information,the first radio signal and the second radio signal are all transmittedvia an air interface.

In one embodiment, the second time window belongs to the target timewindow, a time length of a time interval between an end of the secondtime window and an end of the target time window is no less than adifference between a time length of the first time window and a timelength occupied by the first radio signal.

In one embodiment, the second time window comprises a time-domainresource outside the target time window, a time length of a timeinterval between an end time for a transmission of the first radiosignal and an end of the first time window is a first gap length, and atime length of a time interval between a start of the first time windowand a start time for a transmission of the first radio signal is asecond gap length; a time length of a time interval between a start ofthe second time window and a start of the target time window is equal tothe first gap length, or a time length of a time interval between an endof the target time window and an end of the second time window is equalto the second gap length.

In one embodiment, the third transmitter 1301 also transmits thirdinformation; herein, the third information is used for indicating Pcandidate radio resources, and a radio resource occupied by the firstradio signal is one of the P candidate radio resources, P being apositive integer, the third information is transmitted via the airinterface.

In one embodiment, the first information is used for indicating a firstradio resource pool, frequency-domain resources comprised by the firstradio resource pool comprise the frequency-domain resource occupied bythe second radio signal, code-domain resources comprised by the firstradio resource pool comprise the code-domain resource occupied by thesecond radio signal, and time-domain resources comprised by the firstradio resource pool comprise the target time window, the radio resourceoccupied by the first radio signal is used for determining at least oneof the frequency-domain resource occupied by the second radio signal orthe code-domain resource occupied by the second radio signal in thefirst radio resource pool.

The ordinary skill in the art may understand that all or part of stepsin the above method may be implemented by instructing related hardwarethrough a program. The program may be stored in a computer readablestorage medium, for example Read-Only-Memory (ROM), hard disk or compactdisc, etc. Optionally, all or part of steps in the above embodimentsalso may be implemented by one or more integrated circuits.Correspondingly, each module unit in the above embodiment may berealized in the form of hardware, or in the form of software functionmodules. The present disclosure is not limited to any combination ofhardware and software in specific forms. The first-type communicationnode or UE or terminal includes but is not limited to mobile phones,tablet computers, notebooks, network cards, low-consumption equipment,enhanced MTC (eMTC) equipment, NB-IOT terminals, vehicle-mountedequipment, aircrafts, airplanes, unmanned aerial vehicles,telecontrolled aircrafts, etc. The second-type communication node orbase station or network-side equipment in the present disclosureincludes but is not limited to macro-cellular base stations,micro-cellular base stations, home base stations, relay base station,eNB, gNB, Transmitter Receiver Point (TRP), relay satellites, satellitebase station, airborne base station and other radio communicationequipment.

The above are merely the preferred embodiments of the present disclosureand are not intended to limit the scope of protection of the presentdisclosure. Any modification, equivalent substitute and improvement madewithin the spirit and principle of the present disclosure are intendedto be included within the scope of protection of the present disclosure.

What is claimed is:
 1. A method in a first-type communication node usedfor wireless communications, comprising: receiving first information andsecond information; transmitting a first radio signal in a first timewindow; and transmitting a second radio signal; wherein the firstinformation is used for determining a target time window, the secondradio signal occupies a second time window in time domain, and thesecond information is used for determining at least one of whether thesecond time window belongs to the target time window or a relativeposition relationship between the second time window and the target timewindow; an end of the first time window is earlier than a start of thetarget time window, a radio resource occupied by the first radio signalis used for determining at least one of a frequency-domain resourceoccupied by the second radio signal, a code-domain resource occupied bythe second radio signal or a Modulation and Coding Scheme employed bythe second radio signal; the first information, the second information,the first radio signal and the second radio signal are all transmittedvia an air interface; the first information and the second informationare transmitted as two different fields in a same signaling, the firstinformation is used for indicating at least one of a time length of atime interval between a start of the target time window and a start ofthe first time window, or a time length of the target time window; thefirst radio signal is transmitted through a physical random accesschannel, the second radio signal is transmitted through a physicaluplink shared channel; a radio resource occupied by the first radiosignal comprises a characteristic sequence resource for generating thefirst radio signal and a time-frequency resource for transmitting thefirst radio signal.
 2. The method according to claim 1, wherein thesecond time window belongs to the target time window, a time length of atime interval between an end of the second time window and an end of thetarget time window is no less than a difference between a time length ofthe first time window and a time length occupied by the first radiosignal.
 3. The method according to claim 1, wherein a timing for thetarget time window is relevant to a timing for the first time window,and a time interval from the end of the first time window to the startof the target time window is no less than X millisecond(s), X beingpositive which is pre-defined or configurable.
 4. The method accordingto claim 1, further comprising: receiving third information; wherein thethird information is used for indicating P candidate radio resources,and a radio resource occupied by the first radio signal is one of the Pcandidate radio resources, P being a positive integer, the thirdinformation is transmitted via the air interface; the first informationand the third information are transmitted as different informationelements in a same RRC signaling; the first-type communication noderandomly selects the radio resource occupied by the first radio signalfrom the P candidate radio resources; an ordering index of the radioresource occupied by the first radio signal among the P candidate radioresources is used for determining at least one of a frequency-domainresource occupied by the second radio signal, a code-domain resourceoccupied by the second radio signal or a Modulation and Coding Schemeemployed by the second radio signal.
 5. The method according to claim 1,wherein the first information is used for indicating a first radioresource pool, frequency-domain resources comprised by the first radioresource pool comprise the frequency-domain resource occupied by thesecond radio signal, code-domain resources comprised by the first radioresource pool comprise the code-domain resource occupied by the secondradio signal, and time-domain resources comprised by the first radioresource pool comprise the target time window, the radio resourceoccupied by the first radio signal is used for determining at least oneof the frequency-domain resource occupied by the second radio signal orthe code-domain resource occupied by the second radio signal in thefirst radio resource pool.
 6. A method in a second-type communicationnode used for wireless communications, comprising: transmitting firstinformation and second information; monitoring a first radio signal in afirst time window; and receiving a second radio signal when the firstradio signal is detected; wherein the first information is used fordetermining a target time window, the second radio signal occupies asecond time window in time domain, and the second information is usedfor determining at least one of whether the second time window belongsto the target time window or a relative position relationship betweenthe second time window and the target time window; an end of the firsttime window is earlier than a start of the target time window, a radioresource occupied by the first radio signal is used for determining atleast one of a frequency-domain resource occupied by the second radiosignal, a code-domain resource occupied by the second radio signal or aModulation and Coding Scheme employed by the second radio signal; thefirst information, the second information, the first radio signal andthe second radio signal are all transmitted via an air interface; thefirst information and the second information are transmitted as twodifferent fields in a same signaling, the first information is used forindicating at least one of a time length of a time interval between astart of the target time window and a start of the first time window, ora time length of the target time window; the first radio signal istransmitted through a physical random access channel, the second radiosignal is transmitted through a physical uplink shared channel; a radioresource occupied by the first radio signal comprises a characteristicsequence resource for generating the first radio signal and atime-frequency resource for transmitting the first radio signal.
 7. Themethod according to claim 6, wherein the second time window belongs tothe target time window, a time length of a time interval between an endof the second time window and an end of the target time window is noless than a difference between a time length of the first time windowand a time length occupied by the first radio signal.
 8. The methodaccording to claim 6, wherein a timing for the target time window isrelevant to a timing for the first time window, and a time interval fromthe end of the first time window to the start of the target time windowis no less than X millisecond(s), X being positive which is pre-definedor configurable.
 9. The method according to claim 6, further comprising:transmitting third information; wherein the third information is usedfor indicating P candidate radio resources, and a radio resourceoccupied by the first radio signal is one of the P candidate radioresources, P being a positive integer, the third information istransmitted via the air interface; the first information and the thirdinformation are transmitted as different information elements in a sameRRC signaling; the first-type communication node randomly selects theradio resource occupied by the first radio signal from the P candidateradio resources; an ordering index of the radio resource occupied by thefirst radio signal among the P candidate radio resources is used fordetermining at least one of a frequency-domain resource occupied by thesecond radio signal, a code-domain resource occupied by the second radiosignal or a Modulation and Coding Scheme employed by the second radiosignal.
 10. The method according to claim 6, wherein the firstinformation is used for indicating a first radio resource pool,frequency-domain resources comprised by the first radio resource poolcomprise the frequency-domain resource occupied by the second radiosignal, code-domain resources comprised by the first radio resource poolcomprise the code-domain resource occupied by the second radio signal,and time-domain resources comprised by the first radio resource poolcomprise the target time window, the radio resource occupied by thefirst radio signal is used for determining at least one of thefrequency-domain resource occupied by the second radio signal or thecode-domain resource occupied by the second radio signal in the firstradio resource pool.
 11. A first-type communication node used forwireless communications, comprising: a first receiver, receiving firstinformation and second information; a first transmitter, transmitting afirst radio signal in a first time window; and a second transmitter,transmitting a second radio signal; wherein the first information isused for determining a target time window, the second radio signaloccupies a second time window in time domain, and the second informationis used for determining at least one of whether the second time windowbelongs to the target time window or a relative position relationshipbetween the second time window and the target time window; an end of thefirst time window is earlier than a start of the target time window, aradio resource occupied by the first radio signal is used fordetermining at least one of a frequency-domain resource occupied by thesecond radio signal, a code-domain resource occupied by the second radiosignal or a Modulation and Coding Scheme employed by the second radiosignal; the first information, the second information, the first radiosignal and the second radio signal are all transmitted via an airinterface; the first information and the second information aretransmitted as two different fields in a same signaling, the firstinformation is used for indicating at least one of a time length of atime interval between a start of the target time window and a start ofthe first time window, or a time length of the target time window; thefirst radio signal is transmitted through a physical random accesschannel, the second radio signal is transmitted through a physicaluplink shared channel; a radio resource occupied by the first radiosignal comprises a characteristic sequence resource for generating thefirst radio signal and a time-frequency resource for transmitting thefirst radio signal.
 12. The first-type communication node according toclaim 11, wherein the second time window belongs to the target timewindow, a time length of a time interval between an end of the secondtime window and an end of the target time window is no less than adifference between a time length of the first time window and a timelength occupied by the first radio signal.
 13. The first-typecommunication node according to claim 11, wherein a timing for thetarget time window is relevant to a timing for the first time window,and a time interval from the end of the first time window to the startof the target time window is no less than X millisecond(s), X beingpositive which is pre-defined or configurable.
 14. The first-typecommunication node according to claim 11, wherein the first receiverreceives third information; wherein the third information is used forindicating P candidate radio resources, and a radio resource occupied bythe first radio signal is one of the P candidate radio resources, Pbeing a positive integer, the third information is transmitted via theair interface; the first information and the third information aretransmitted as different information elements in a same RRC signaling;the first-type communication node randomly selects the radio resourceoccupied by the first radio signal from the P candidate radio resources;an ordering index of the radio resource occupied by the first radiosignal among the P candidate radio resources is used for determining atleast one of a frequency-domain resource occupied by the second radiosignal, a code-domain resource occupied by the second radio signal or aModulation and Coding Scheme employed by the second radio signal. 15.The first-type communication node according to claim 11, wherein thefirst information is used for indicating a first radio resource pool,frequency-domain resources comprised by the first radio resource poolcomprise the frequency-domain resource occupied by the second radiosignal, code-domain resources comprised by the first radio resource poolcomprise the code-domain resource occupied by the second radio signal,and time-domain resources comprised by the first radio resource poolcomprise the target time window, the radio resource occupied by thefirst radio signal is used for determining at least one of thefrequency-domain resource occupied by the second radio signal or thecode-domain resource occupied by the second radio signal in the firstradio resource pool.
 16. A second-type communication node used forwireless communications, comprising: a third transmitter, transmittingfirst information and second information; a second receiver, monitoringa first radio signal in a first time window; and a third receiver,receiving a second radio signal when the first radio signal is detected;wherein the first information is used for determining a target timewindow, the second radio signal occupies a second time window in timedomain, and the second information is used for determining at least oneof whether the second time window belongs to the target time window or arelative position relationship between the second time window and thetarget time window; an end of the first time window is earlier than astart of the target time window, a radio resource occupied by the firstradio signal is used for determining at least one of a frequency-domainresource occupied by the second radio signal, a code-domain resourceoccupied by the second radio signal or a Modulation and Coding Schemeemployed by the second radio signal; the first information, the secondinformation, the first radio signal and the second radio signal are alltransmitted via an air interface; the first information and the secondinformation are transmitted as two different fields in a same signaling,the first information is used for indicating at least one of a timelength of a time interval between a start of the target time window anda start of the first time window, or a time length of the target timewindow; the first radio signal is transmitted through a physical randomaccess channel, the second radio signal is transmitted through aphysical uplink shared channel; a radio resource occupied by the firstradio signal comprises a characteristic sequence resource for generatingthe first radio signal and a time-frequency resource for transmittingthe first radio signal.
 17. The second-type communication node accordingto claim 16, wherein the second time window belongs to the target timewindow, a time length of a time interval between an end of the secondtime window and an end of the target time window is no less than adifference between a time length of the first time window and a timelength occupied by the first radio signal.
 18. The second-typecommunication node according to claim 16, wherein a timing for thetarget time window is relevant to a timing for the first time window,and a time interval from the end of the first time window to the startof the target time window is no less than X millisecond(s), X beingpositive which is pre-defined or configurable.
 19. The second-typecommunication node according to claim 16, wherein the third transmittertransmits third information; wherein the third information is used forindicating P candidate radio resources, and a radio resource occupied bythe first radio signal is one of the P candidate radio resources, Pbeing a positive integer, the third information is transmitted via theair interface; the first information and the third information aretransmitted as different information elements in a same RRC signaling;the first-type communication node randomly selects the radio resourceoccupied by the first radio signal from the P candidate radio resources;an ordering index of the radio resource occupied by the first radiosignal among the P candidate radio resources is used for determining atleast one of a frequency-domain resource occupied by the second radiosignal, a code-domain resource occupied by the second radio signal or aModulation and Coding Scheme employed by the second radio signal. 20.The second-type communication node according to claim 16, wherein thefirst information is used for indicating a first radio resource pool,frequency-domain resources comprised by the first radio resource poolcomprise the frequency-domain resource occupied by the second radiosignal, code-domain resources comprised by the first radio resource poolcomprise the code-domain resource occupied by the second radio signal,and time-domain resources comprised by the first radio resource poolcomprise the target time window, the radio resource occupied by thefirst radio signal is used for determining at least one of thefrequency-domain resource occupied by the second radio signal or thecode-domain resource occupied by the second radio signal in the firstradio resource pool.